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Meiosis
Evolution/Mechanisms of Evolution
Speciation
The History of Life on Earth
Human Evolution
100
The number of daughter cells meiosis creates.
What is 4 daughter cells?
100
All species have descended from common ancestors; a change in the composition of a population over time.
What is evolution?
100
Anything that prevents individuals of closely related species from interbreeding..
What is reproductive barriers?
100
Theory, proposed by Alfred Wegener in 1912, that all continents had been joined in a single supercontinent and have since broken up.
What is continental drift?
100
The group consisting of modern humans, extinct human species and ll of our immediate ancestors.
What is a hominin?
200
When homologous chromosomes pair up and exchange segments.
What is Prophase 1?
200
The three components needed in natural selection.
What is variation, heritability, and differential reproduction?
200
A group of populations whose members have the potential to interbreed with one another in nature.
What is biological species?
200
Earth's crust is divided into a number of large plates that float atop the mantle.
What are plate tectonics?
200
The approximate time of the greatest hominin radiation.
What is about 3 MYA-2 MYA?
300
When pairs of homologous chromosomes line up.
What is Metaphase 1?
300
Selective breeding of domesticated plants and animals to promote the occurrence of desirable traits in the offspring.
What is artificial selection?
300
Members of the same species usually look alike.
What is morphological species?
300
time of Pangea formation; extinction of 96% of marine life; followed by rise of dinosaurs.
What is permian extinction?
300
A finger than can be placed opposite the fingers on the same hand.
What are opposable thumbs?
400
When pairs of homologous chromosomes split up.
What is anaphase 1?
400
Structures that are similar due to shared ancestry.
What is homologous structures?
400
Refers to the appearance of anew species of life on Earth.
What is speciation?
400
Loss of dinosaurs and more than 50% of all other life; followed by rise of mammals.
What is cretaceous extinction?
400
The name of a specimen of Australopithecus afarensi?
What is Lucy?
500
The number of times meiosis goes through the cycle.
What is 2 times?
500
Similarities in traits due to adaptation to similar environment rather than shared ancestry.
What is convergent evolution?
500
Initial block to gene flow is a geographic barrier that physically isolates the splinter population.
What is allopatric speciation?
500
The name of the supercontinent.
What is Pangea?
500
A type of primate that does not have opposable thumbs.
What are Bushbabies?